Baseball pitching aid



FIG. 1 is a front elevation view of my new design for a baseball pitching aid;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a right side view thereof, the left side view being a mirror image;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a left front perspective view thereof; and,

FIG. 7 is a right rear perspective view thereof. 

The ornamental design for a baseball pitching aid, as shown and described. 